The Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train is released in theaters across Japan, becoming a massive box office success.
Mugen Train surpasses Spirited Away to become the highest-grossing film in Japanese box office history.
The Demon Slayer Mugen Train movie is released internationally, expanding the franchise's global popularity.
The anime continuation adapting the Entertainment District Arc starts airing, continuing the anime story after Mugen Train.
Muzan Kibutsuji is born, the first and progenitor of demons.
Muzan transforms into the first demon, beginning the existence of demons.
Organization of demon slayers to protect humans and combat demons is established.
Tanjiro returns home to find his family slaughtered by a demon. His sister Nezuko is turned into a demon but retains some human emotions.
After training under Sakonji Urokodaki, Tanjiro passes the Final Selection and becomes a demon slayer.
Tanjiro encounters and defeats Lower Rank One demon posing threat to humans.
Tanjiro meets the elite Demon Slayer Hashira for the first time.
Tanjiro and companions board the Infinity Train to investigate disappearances and face Rui’s family of Lower Moon demons and Enmu, Lower Moon One.
Nezuko temporarily regains her human traits and works alongside Tanjiro and demon slayers to fight stronger demons.
Demon Slayer Corps engages in a massive battle against Muzan Kibutsuji and Upper Moon demons.
The Demon Slayer Corps rebuilds and survivors recover from the war; peace starts returning to the land.